English Championship team Hull City officially announced that Ronaldinho's son Joao Mendes freely joined the U21 echelon, and the two sides signed a contract for one year and had a one-year renewal option.

20-year-old Joao Mendes, who plays as a right winger on the field, joined Burnley from Barcelona U19 last season, and played 5 games for U21, contributing 1 goal and 2 assists.